If I think about how masses of people could be teached which plattforms they should use to avoid all these negative developements
People don't care about all these negative developments. What people care about is a smooth running and easy to use system, with all possibilities.
That's why UBports is not that famous, because of missing apps for their daily routine. Most people don't like to make extra effort if everything is that easy with Android.
Never mind how stable and safe UBports is, it will never be for the people, because they can't use the software they already know, to have an easy life.
I changed using 100% only Ubuntu Touch, when it first came out with the BQ E4.5. But after about 2 years, I changed back to Android, because it makes life so much easier.
But unfortunately, I have to pay for the easy life with my datas.