English is a language in which words can have more than one meaning depending on the context they are used in.

"I am sick" meaning that I am not feeling well.

In the context of someone watching a performance: "This is sick!" as an exclamation that something they saw was impressive.

In the context of someone watching something gut wrenching: "This is sick!" as an exclamation that something they saw was horrible and unpleasant.

In the context of someone stepping in a puddle of vomit while walking around London: "This is sick!?" as a dismayed exclamation of realisation that what they stepped in was a puddle of vomit.

I can go on, and so can anyone who can speak English.

So, please stop this bullshit of "I want this word to mean this one thing that it has not meant at least the past 30 years."

It's extremely useful that we can agree on what words mean despite the fuzziness of English. You are intentionally trying to muddy the water.