There's no sense in believing that. May signed Article 50 -- if she wanted to stop Brexit she should simply not have signed it. Theresa May negotiated with the EU; if she wanted to stop Brexit, she should simply never have turned up. Theresa May introduced, and passed, the necessary legislation. If she had wanted to stop Brexit, then all she -- and, while we are at it, all Parliament -- needed to do was never introduce that bill.
In point of fact, then, Theresa May has barely even scratched the surface of the things she could have done to thwart Brexit; instead, she has somewhat doggedly, and in spite of opposition from all sides, tried to put together a version of it. It's a rubbish version, and everybody hates it, but hey -- it's the only version anyone has been able to come up with. Let me again remind you that all Brexiteers seem to have been able to do is heckle from the sidelines -- not because they were forced to be on the sidelines, but because they have *chosen* to be there. Gove, and Johnson, and Davis, and Fox, and Leadsom, and Rees-Mogg, and more -- none of them have been brave enough, none of them has had the stomach even to try. Thwarted by nothing more than their own lack of courage and ability -- not by anyone else, but by themselves.
How the tables have turned. It wasn't so long ago when you were defending May from such accusations, and claiming loudly and confidently that she was getting on with the job and was going to deliver:
"Quite refreshing for a politician to put the will of the people before their own personal politics... she said some time ago that she voted to remain but that she will do the job expected of her." (
https://www.theanswerbank.co.uk/News/Question1574609.html )
"I admire Mrs May. I think she has the most difficult job of any Prime Minister since at least World War II and she's doing it with dignity." (
https://www.theanswerbank.co.uk/News/Question1571934-2.html )
It's not unreasonable for you to have changed your mind since, but still, it seems worth remembering how far we've come from those days.