I don't think it is unethical to offer a free game that contains advertising or "pay to win" content if the person downloading the game knows it is there and the app / program is honest about it's permissions and it's tracking. People choose to download apps like this all the time, knowing exactly what they are getting.
Games cost money to make. If people don't want to pay money up front for them, well then as they say: the user can be the product.
The point isn't that people don't want to pay money up front, it's a decision being made by developers to churn out endless f2p games over games that gamers would glady pay up front for, and since everyone else is doing it and one or two people make a lot of money in it, a bunch of people who chase shiny try to chase shiny, just like others chased after crypto and other gimmicks.
All the while, the already paying customer base is frustrated.
Games cost money to make. If people don't want to pay money up front for them, well then as they say: the user can be the product.