"I will support your right to worship at whatever altar you choose," Kluwe wrote, "but I will not support you trying to force it on someone else, or to deny someone else legal benefits due to religious reasoning."
Additionally, the Minnesota punter takes issue with Birk's statement that gay marriage will impact his children.
"The only impact same-sex marriage will have on your children is if one of them turns out to be gay and cannot get married," Kluwe said. "What will you do (and I ask this honestly) if one or more of your kids ends up being gay? Will you love them any less?"
Despite his opposition to Birk's views, Kluwe was quick to state his respect for the center, a former Vikings teammate.