Very interesting.  I thought that I never heard of him until I pulled up with Wikipedia page and remembered this event form when he was with the Vikings.

From Wikipedia:
Social views
On June 26, 2015, Robinson publicly announced his beliefs opposing same-sex marriage. After the Supreme Court of the United States released their decision on Obergefell v. Hodges allowing same-sex marriages nationwide, Robinson made headlines when he compared same-sex marriage to incest and pedophilia in posts on his Twitter account. The following day, he apologized for his comments and attempted to clarify them in a statement through the Star-Tribune. He stated, "I apologize for any offense my tweets may have caused. In an attempt to express my beliefs, I created some confusion with my choice of words, and for that I apologize. I do not equate the Supreme Court’s decision on marriage equality with other social issues. There are obvious differences."

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