dated, now offensive : affected by intellectual disability : INTELLECTUALLY DISABLED
NOTE: The term <r> is increasingly considered offensive. The use of intellectually disabled is now preferred over <r> in medical, educational, and regulatory contexts, as well as in general use.
Further, you use it as an insult specifically in that you suggest someone of a certain political preference is intellectually disabled.
Essentially you are combining someone’s medical situation they did not pick or cause, with someone else’s political interests. That’s fucked up.
You are. It’s a slur. It is not an accepted term in the medical community.
Edit here’s an actual definition from https://www.merriam-webster.com:
Further, you use it as an insult specifically in that you suggest someone of a certain political preference is intellectually disabled.
Essentially you are combining someone’s medical situation they did not pick or cause, with someone else’s political interests. That’s fucked up.