Trump only ever escalates, he never deescalates. So no, he would never quit. But you are absolutely right that losing again would be a huge insult to him. Bigger than before.
You can run some of them on your computer and do anything with them.
Others - Grok in particular - don't have safeguards. And even if they have safeguards, depending on how they were implemented, you may be able to circumvent them.
Anders' analysis makes sense and he's usually spot on. https://youtu.be/A4mg1ZUb-7s