So much truth in this. It's amazing that JS has managed to survive (even thrive!) in spite of the constant fundamental backwards-breaking changes every few cycles. Maybe that speaks to the lack of web based alternatives than anything else.
wat
TC-39 literally has "Don't break the Web" as an explicit goal.
You are conflating "JavaScript" with something else (possibly some popular packages written in JS, for example—by people who have no control or say over the standard, usually, and with dubious taste to begin with).
By all means, avoid those packages and tastemakers. JS is still JS and still works despite their whims.
Those are functionally part of the language