@atria, I think you should know what to do (who to call, including at your school ) should there be a problem. Be informed and be prepared. It is often not possible to take video on your phone, for example. With a u.s. passport, you are unlikely to have trouble entering the country, though. And MX will be supportive as well when you arrive. Beyond this, I would not invest time in worry.
In reality, the current political environment has emboldened some people to air ugly opinions they might have kept to themselves. It has also spurred many previously passive people to action to protect their intended victims. If you are even 10% of the likeable person in real life you are on these boards, you will have supporters wherever you are.