If LDS polygamy was a restoration then one would think that there would be some indication of its practice in history but there is none.
Lets try this in alphabetical order:
Abdon:
A judge of Israel, possibly same as 'Bedan' By implication from number of sons...
"And he had forty sons and thirty nephews, that rode on threescore and ten ass colts: and he judged Israel eight years." Judges 12:14
Abijah:
A king of Judah. 14 Wives
"But Abijah waxed mighty, and married fourteen wives, and begat twenty and two sons, and sixteen daughters." 2 Chronicles 13:21
Abraham:
Faithful friend of God and father of the Hebrew nation. "Father of the faithful"
3 Wives - Sarah, Hagar and Keturah
"Now Sarai Abram's wife bare him no children: and she had an handmaid, an Egyptian, whose name was Hagar." Genesis 16:1
"And Sarai Abram's wife took Hagar her maid the Egyptian, after Abram had dwelt ten years in the land of Canaan, and gave her to her husband Abram to be his wife." Genesis 16:3
"Then again Abraham took a wife, and her name was Keturah." Genesis 25:1
Ahab:
A king of Israel
"Thy silver and thy gold is mine; thy wives also and thy children, even the goodliest, are mine." 1 Kings 20:3
Ashur
2 Wives, Helah and Naarah
"And Ashur the father of Tekoa had two wives, Helah and Naarah." 1 Chronicles 4:5
Caleb
5 Wives - Azubah, Jerioth, Ephrath, Ephah and Maachah
"And Caleb the son of Hezron begat children of Azubah his wife, and of Jerioth: her sons are these; Jesher, and Shobab, and Ardon. And when Azubah was dead, Caleb took unto him Ephrath, which bare him Hur." 1 Chronicles 2:18-19
"And Ephah, Caleb's concubine, " 1 Chronicles 2:46
"Maachah, Caleb's concubine, " 1 Chronicles 2:48
David
A king of Israel. "After God's own heart"
At least 18 wives - Michal, Abigail, Ahinoam of Jezreel, Eglah, Maacah, Abital, Haggith, and Bathsheba, and "10 women/concubines"
"Wherefore David arose and went, he and his men, and slew of the Philistines two hundred men; and David brought their foreskins, and they gave them in full tale to the king, that he might be the king's son in law. And Saul gave him Michal his daughter to wife." 1 Samuel 18:27. (See also 1 Samuel 19:11-18; 25:44; and 2 Samuel 3:13-14; 6:20-23.)
"David sent and communed with Abigail, to take her to him to wife. 1 Samuel 25:39
"David also took Ahinoam of Jezreel; and they were also both of them his wives." 1 Samuel 25:43
"But Saul had given Michal his daughter, David's wife," 1 Samuel 25:44
"Absalom the son of Maacah the daughter of Talmai king of Geshur;" 2 Samuel 3:3
"And the fourth, Adonijah the son of Haggith; and the fifth, Shephatiah the son of Abital; And the sixth, Ithream, by Eglah David's wife. These were born to David in Hebron." 2 Samuel 3:4-5
"And David took him more concubines and wives" 2 Samuel 5:13, 1 Chronicles 14:3
"And Nathan said to David, Thou art the man. Thus saith the LORD God of Israel, I anointed thee king over Israel, and I delivered thee out of the hand of Saul; And I gave thee thy master's house, and thy master's wives into thy bosom, and gave thee the house of Israel and of Judah; and if that had been too little, I would moreover have given unto thee such and such things." 2 Samuel 12:7-8
"And David comforted Bathsheba his wife..." 2 Samuel 12:24
"And the king went forth, and all his household after him. And the king left ten women, which were concubines, to keep the house." 2 Samuel 15:16. (See also 2 Samuel 16:21-23.)
Eliphaz
2 Wives, Timna
"And the sons of Eliphaz were Teman, Omar, Zepho, and Gatam, and Kenaz. And Timna was concubine to Eliphaz " Genesis 36:11-12
Elkanah
2 Wives, Hannah and Peninnah
"And he had two wives; the name of the one was Hannah, and the name of the other Peninnah" 1 Samuel 1:2
Esau
3 Wives - Judith, Bashemath and Mahalath
"And Esau was forty years old when he took to wife Judith the daughter of Beeri the Hittite, and Bashemath the daughter of Elon the Hittite:" Genesis 26:34
"Then went Esau unto Ishmael, and took unto the wives which he had Mahalath the daughter of Ishmael Abraham's son, the sister of Nebajoth, to be his wife." Genesis 28:9
Ezra
2 Wives, Jehudijah
"And the sons of Ezra were, Jether, and Mered, and Epher, and Jalon: and she bare Miriam, and Shammai, and Ishbah the father of Eshtemoa. And his wife Jehudijah bare Jered the father of Gedor, and Heber the father of Socho, and Jekuthiel the father of Zanoah. And these are the sons of Bithiah the daughter of Pharaoh, which Mered took." 1 Chronicles 4:17-18
How long would you like me to keep going? I have about 30 more I could list. All of them righteous men of the faith, some of whom stood in the very presence of God.
But please go ahead with your assertion that polygamy is a wicked practice.
We can easily forgive a child who is afraid of the dark; the real tragedy of life is when men are afraid of the light. - Plato