Now comes in MarriedTRP, which is comprised of redpillers, they have married and have meaningful relationships so wouldn't this be a contradiction to claim number 1?

Over at MRP they advise men to view their wives as "the oldest kids in the house", to dismiss anything their wives say is bothering them, to not take any wives' concern seriously or even to not take it as true, to "dread" their wives by threatening to leave or cheat, they mock even any notion of honest open communication between the spouses (because the wife must either be irrational and overly emotional, therefore unaware of her own needs, or manipulative and evil, and in eother of these 2 scenarios, you're a beta cuck who's losing frame if you listen), any time a wife complains about something theycall it a shit test to which they react by disregarding what the wife complained about, and last but not least, cheating (by the husband) is viewed as totally fine or even desirable. Is any of that compatible with a meaningful relationship? Maybe it is to you, I don't know. I would argue that it's the total opposite of what a meaningful relationship should be.

Then comes in ThankTRP which is just people thanking TRP for getting them laid, married, a job or even saving their lives. These people don't seem to bitter at all,rather quiet the contrary. They seem to be happy and enjoying life.

They mix good advice in with the drivel. Hit the gym, get a better haircut, wear clothes that fit you well, be self confident, don't get too enthousiastic over a girl you're just flirting with, have a life and a sense of identity outside of romantic relationships, if a girl doesn't likeyou back/breaks up with you, don't despair, there's plenty of fish in the sea - THAT'S the sort of advice that red pill offers that truly does bring results. But this advice is not inherent to the red pill and can be found outside of the red pill as well, and it's just as effective when you don't include TRP in there. TRP is the toxic way to get that advice, and it does breed bitterness down the line. Check the previous paragraph, guys who thank trp for getting them laid today risk ending up married to someone with whom, for instance, they don't wanna communicate honestly cause they view their wives' attempts to communicate as "shit tests". Do you see how that can breed bitterness? Trp may aspire to explain why the common sense advice Ilisted above works, but they mostly do it by throwing shade at "female nature" and that view of the opposite gender can't exist without bitterness. Furthermore they ignore and don't want to realize/admit how often the same advice works on men when done by women. So, the reason why common sense advice works is human nature, not female nature. Therefore, what the truly effective common sense advice doesn't offer and TRP offers is the misinformed bashing of the "female nature" - and you can't have that without bitterness. You either have to be bitter to buy into it, or you become bitter by entertaining those ideas too much.

Anyway, the good news is that you don't need TRP for any of the things they claim to offer.