What is Online Gambling?

This is still indirect Consideration. It doesn't matter who is paying whom. If a transfer of money is a prerequisite, it's still Consideration.

Okay, so there's a lack of federal protection. They still can't legally sell to Texans.


I don't think the Texas law specified the benefit had to be tangible.

In which case the Texas law applies to, for example, a ticket to the Zoo. Can't sell them to minors because who knows, they might not enjoy their visit. They might not gain the benefit of seeing a real live lion roar.

I guess I'll say it again, then: go ahead and take them to court, if you're so confident.
Convincing us, or failing to, doesn't matter in the least. Convince a judge - or, first, convince an actual lawyer to take this on - and then you've accomplished something.