None of which the recently rolled back protections would fix had they occurred while the protections were in place as they only applied to the federal government. You can't guarantee a civil right with an executive order.
I suspect that the LGBTQ people in these cases must have really done something that broke the law in these cases. In the news just the other day there were TWO gay lawyers who defended a gay person PRO BONO who murdered two kids in a school with 100 witnesses just because he said those kids teased him for being gay (though witnesses said no such thing ever happened).
Here is a case in 2014 of a man who was fired because his new manager went through his phone and found male gymnast photos. https://www.npr.org/2014/11/10/363049315/for-people-fired-fo...
Here are 5 more examples: https://www.mic.com/articles/11738/5-people-who-were-fired-f...
That links to a study citing that american LGBTQ people experience much higher rates of workplace discrimination: https://www.americanprogress.org/issues/lgbt/news/2011/06/02...