Gay college student in my 4th year majoring in civil eng heading to USA. Is it better to transfer to computer science field etc.?

Hey guys, it’s my first time to raise a question here and thanks for your attention:)
I’m a Chinese college student in my 4th year majoring in civil engineering. Unfortunately, as a matter of fact, so far I haven’t figured out a field which I’m totally into. I don’t hate civil eng., but don’t totally love it as well.
It is hard being gay in China. People know very little about LGBT people and generally fail to take it cool, which probably is one of the reasons I’m heading to USA. LOL.
So here’s the thing, I heard that students majoring in computer science &other fields related to computer are more likely to get a job in USA, and these fields are technically more friendly to gay.. Is that true? So do you guys think it a good idea for me to transfer to computer fields? And what do I need to do to make this happen?
Thanks a lot guys! :)