Tube traffic will convert. But not the big tubes with thousands of full scenes from the very paysite you are trying to sell.
A tube site done correctly can absolutely make a few sales. But that isn't even the same kind of animal as a tube site that is full of stolen content and full length scenes.
Here's a real test for ya. Buy a membership to the paysite you are selling. Then download their entire members area, post it all on your tube site.
Then come back in a couple of weeks and post your stats then.
You know what I'm saying.
Comparing a tube site that is designed to sell memberships to the monster tubes like pornhub which are designed to make money off of cams and dating and selling their "Premiere" memberships to themselves isn't the same thing at all.
I don't think any thoughtful person would complain about your tube. The complaints and problems are with the ones using stolen content and amassing MASSIVE traffic and profit off of the backs of hard working people.