Or I could be playing a full game that I don't have to wait on. I don't want to play a partial game. I don't want to use premade characters or just use the small selection of monsters.
For all the stupid gamer fallacies that the internet has created there needs to be one for people saying "well, you can just make it up yourself." That''s one of the most useless statements. If I wanted to make it up I would't be impatient for 5e because I wouldn't need it or any other game. I buy games because I don't have the time to create it all myself. I buy games because unlike some gamers I admit the professionals usually do it better then I do. I buy games because the creativity and ideas other writers come up with are different then what I could.
Yes, you could be playing a full game that you don't have to wait on, therefore the question becomes why are you not doing so?
You don't want to use premade characters or just use the small selection of monsters. Fine, that is a choice; your choice. That does not mean that there is not enough to play, only that there is not what you consider a full game.
So saying "well, you can just make it up yourself" is "a stupid gamer fallacy"? Where do you thing RPGs came from in the first place? It was gamers, just like you or I, taking existing games and making up rules to make the game work differently than it had before. D&D was born from historical war gaming simulations until someone decided that they wanted to have a druidic priest on the battlefield that could be rid of elephant troops by casting a spell. They weren't professional game designers. They were people, just like us.
Playing a game with less-than-fully-formed-rules is a choice. If you've ever participated in a closed or public beta of a video game, your played with less-than-fully-formed-rules. this is a choice. One that many gamers have made in the past and one that will continue to be made in the future, not just for 5e for for many, many games.
Do professional game designers do a better job overall in designing games than I do. Yes. Does that mean that I should stop creating my own adventures? Does that mean that the Forgotten Realms is somehow inherently better than all the home-made worlds out there (remembering that FR WAS a home-made world)? Does that mean that you choose not to create your own and, therefore, those that do are somehow inferior? My opinion is no.
My choices and opinions are mine, for good or bad. I choose to be happy with what I have rather than unhappy about what I don't have. I choose to use what I have, what I know, what I can intuit (and some conversion tools made by others) to create adventures for myself and others to play so that I can enjoy the game that is, rather than complain about the game that is not.
Your opinions are yours and I respect your right to have them. My opinions are different.
Be well and play on.