Yes, this is one thing people don't seem to understand. A lot of football clubs have problems trying to compete and they have to find a way to make more money. Also, maybe some don't like this idea very much, but are afraid to be left behind if they don't accept.
It is easy for PSG and Bayern to say no, they will dominate their leagues most of the time, but for other teams it is not that easy, especially in England.
Now, Real, Barcelona and the Italians have their owns issues.
To be fair, so long the domestic league stays and is taken seriously, I really don't care to much what happens with CL as it has change so many times during my lifetime, that it doesn't matter anymore.