Yes, by removing the headphone jack on high-end phones, just like Apple did.
Let's not pretend this is an Apple vs. The Rest Of The Industry sort of thing. The whole sector is going that way; Apple just took the lead.
See also: Floppy drives.
No, this is clearly incorrect. As I said in my original comment, there were water-resistant phones with headphones jacks years before Apple released one without a headphone jack, and there are ones being released now as well. While Samsung removed a headphone jack for a generation of their flagship phones, the generations before and after were both water-resistant as well. Samsung's newest releases (S10 Lite and Note10 Lite) both have headphone jacks and are water-resistant.
From years ago: https://techcrunch.com/2014/02/27/apple-if-samsung-and-sony-...
That's Apple's point of failure. The rest of the industry (mostly) has worked out how to make a headphone jack water-resistant, years before Apple made any phone water-resistant at that.