One of the Catholic church's most outspoken and regular commentators on all matters homosexual, Stankevičs said on LTV's Panorama news show such legislation should not be passed in Latvia.
"I am very sorry for Estonia. I feel for Estonia," Stankevičs said.
He denied the Catholic church was softening its stance against homosexual relationships following recent discussions in Rome on the subject.
Stankevičs, who himself also took part in the discussions at the Vatican, said that the Pope had called on the bishops to express their opinions even if they did not agree with the pontiff.
I am very sorry for Estonia. I feel for Estonia"
"The church's position has not changed. It remains the belief that such relationship models are not in accordance with God's plan," said Stankevičs, calling on the faithful to follow "God's plan" which said consisted of a man and a woman having children.
The church's role was to "help homosexuals solve their problems, which cause the state in which they find themselves," he said.
The archbishop also questioned how the human race could reproduce without the benefit of heterosexual relationships.
"Imagine if everyone would be homosexual. Then how would children be born?" Stankevičs asked, notwithstanding several decades of advances in the area of human fertility.
His comments come three weeks after he told an interviewee in Rome that homosexuality was "destroying human identity."