I
assume it’s safe to say thousands of people take communion every week that aren’t Catholic and hundreds of thousands that are Catholic take it when they’re not supposed to due to lack of confession.
Although it is not encouraged to take it when you’re not Catholic I would hope (and like to believe) doing so has led many into the faith by opening them more fully to Jesus and sparking a longing for him, regardless of the ethical implications.

God works in amazing ways.
However, I am in no way promoting it.