Can i file anything in court Tues to stop this from happening ?

You need to confer with a lawyer to disect the facts. Cannot be answered definitively on this forum.

Do I have a case of discrimination against my employer?

Difficult as to you personally based on your set of facts unless intent to discriminate can be established by evidence such as witnesses or...

As explained, you can be terminated if a reasonable accommodation cannot be provided, and as long as no wage laws are violated.

Are there any labor violations?

Sounds like you may be mis- classified with respect to exempt v. non-exempt status, but as you imply, a discussion with a professional is required...

DO I HAVE TO PLACE RETIREMENT ACCOUNTS AND BANK ACCOUNTS IN TRUST SINCE THEY ALREADY HAVE ASSIGNED BENEFICIARIES ?

Typically the accounts you describe do not require trust funding. your property is a different story unless you have a value of 150k or less and/or...

Employment discrimination

You would have to prove intentional discrimination by way of direct (unlikely) or indirect evidence through witnesses and/or documentation.

Will it stop me from getting another job if my previous job accused me of theft and wants me to pay them back?

The situation as you have described it--specifically, no. However if a new employer contacts your old employer and a less-than glowing...

You are precisely correct, however you must FUND your trust by placing assets within it after it is completed. Otherwise, it is worthless.

The company I work for had a shop location they shut down without notice. Can that be considered a layoff ?

Yes. There is nothing illegal about closing a business outlet.

When you receive tips as part of your compensation, your legal rights under wage and hour laws become a bit more complicated. The rules about what...