The remaining Bernie supporters are being split between Johnson-Weld, Jill Stein, and even Trump. It's about voting against the establishment for many. These voters are not going to be swayed by logic, Hillary, her supporters, or by a terrible Trump performance either.
However, Trump still opposes marriage equality, would appoint judges that would overturn Obergefell v. Hodges, the case that made marriage equality the law of the land, and has an extensive and murky record and statements regarding the LGBT community, including supporting discrimination on the basis of religious beliefs, as Governor Mike Pence signed into law in Indiana.
Of course, 22% of LGBT voters supported Romney in 2012.
Best advice. Become more informed. Watch the debates. Talk about what's important to you.
These choices are difficult for those who have yet to make up their mind. Take the time to look at what these candidates have actually done with their lives. What work have they done, for whom did they do that work, how long have they been doing it.
I can't wait to see how this debate unfolds.