Challenge: Name one modern occult practice/lineage that hasn't borrowed, adapted, or straight-up lifted from somewhere else over time. I'll wait.
I built an occult timeline going back to 10k BCE chasing 'pure' currents, and guess what? None exist. Everything evolves, syncretizes, changes. Wicca's no exception. Gardner mashed British folk, Crowley, etc., and later waves grabbed more (sometimes sloppily, credit where due).
Wicca isn't a more or less mashed up soup of stuff anymore than Thelema, LHP, RHP, Enochian, Witchcraft, Kabbalah, Demonolatry, whatever your sacred cow is.
Since when is appropriation a bad thing? Why is it a bad thing if its a mixed bag of stuff? Why is it a bad thing? Maybe that's the real question here.
Not your path? Fair. But it clicks for some, and that's what matters. Results over purity tests and popularity contests. Its only stupid if it doesn't work.
And for the record, it isn't my jam either. Doesn't mean it doesn't work for others though. YMMV