Funny rant, but I didn't see anything extraordinarily bad: your failure of spending 2 minutes to find the correct documentation. Poorly organized documents suck, but not enough for a boycott. No reply to emails or support tickets? Sucks, but standard procedure. With 90% of companies, this is exactly what happens: they simply do not care. Not enough for a boycott. No step files available? Sucks, but usual practice. I prefer that over having wrong step files, which is quite usual, too.
I have seen much much worse, like a manufacturer poisoning the whole supply chain (Digikey, Mouser and others) by accidentally packaging thousands and thousands of parts with wrong labels, then failing to react in any way for weeks and weeks, when production is halted. Or another company just discontinuing a new part years before the EOL date, without any notice to any, not Digikey, not Mouser, then coming up with a new suggested alternative, which they happily sell, only to repeat the same and discontinue it, again without any notice to customers, after a year or so.
And I'm sure those who are more experienced than me (a small and relatively young player), have seen lot worse.
I'm also sure the very day you or your customers finds an interesting part from Honeywell no one else can provide which enables your design, you forget your lifelong ban. I was also sure I'm never going to buy anything from Bosch Sensortec, ever. In reality, I will.