but I paid for the game, not for having to pay even more for a patron, I support the game but I think that keeping the game alive for the people who bought it is more important than giving the beta to people who did not buy the game and only employer payment one month
I'm not telling you to support the patreon. One of the benefits of being a patreon is playing builds of the game early that are buggy and have unfinished content. That's their reward for being a subscriber every month.
With a one time purchase you and everyone else buying the game will receive the beta when it's ready. I don't want to release anything that's buggy or unfinished to the masses, and I'm sure you would be highly disappointed if you downloaded a game and you ran into issue after issue.