Can:
"Not everyone can love you"
be used to mean:
"It's impossible for you to be loved by everyone: there will always be some people out there who hate you" ?
Can:
"Not everyone can love you"
be used to mean:
"It's impossible for you to be loved by everyone: there will always be some people out there who hate you" ?
The two sentences mostly mean the same thing. The second one is much stronger though, using "impossible".
Instead of the first sentence, it is more usual to say:
You can't satisfy everybody.
at the "cost" of being broader.