considering the impracticality of said motto, it's kind of hypocritical to use it.
it's a nice message, don't get me wrong, but it's really not possible. no one loves and tolerates everything, nor should everything be loved and tolerated. of course, it's not a motto meant for things like "We should love and tolerate murderers!" more like for things related to racism and minor things of the sort.
I believe most of the fandom already understands that, and still uses it because it's simply a nice message.