It depends what you mean by ‘bad’. Seriously: what does that mean to you? are comfortable being quiet and private about your sexuality and relationships? then very few universities (though I wouldn’t recommend BYU or Liberty) will be a problem. Are LGBTQ? politically active groups a central part of your life? then you will want to look for more liberal student bodies, which typically correlate with high levels of expectations that each student is simply accepted for who they are.
The thing about Notre Dame is that it is Catholic and it takes that seriously. They (like Georgetown) are trying: there is a [url=<a href=“http://www.grc.nd.edu/lgbtq-allies/%5Dclub%5B/url”>http://www.grc.nd.edu/lgbtq-allies/]club[/url] and a campus [url=<a href=“http://friendsandallies.nd.edu/%5Dinitiative%5B/url”>http://friendsandallies.nd.edu/]initiative[/url]. But the people who choose to go to a staunchly Catholic university typically have been raised in an ethos that sees anything but binary gendered heterosexuality as de facto less than God’s plan. The proportion of the campus population that is genuinely comfortable with people on other paths is going to be smaller than at a more liberal school. The question is: how important is that to you?