If there is one person out there still using one of these browsers, for whatever reason, I want them to still be able to access my site, rather than telling them to take a hike.
I think it's rude, ablist, exclusionist, arrogant, just plain bad to demand the user switch browsers just to access my resource, akin to telling a wheelchair user to take a hike, or making a road incompatible with a certain car.
I don't think that for low-interest pages with text and information, HTTPS has more disadvantages than advantages.
I think the Web has taken a turn for the worse, but it's not too late to turn it around and make it free and accessible again.
I'm committed to put in work and research to bring about this turnaround. Honestly speaking, it's not that hard once you start trying. It's just a matter of keeping your HTML simple and light, feature-checking all your JavaScript, making fallbacks for nojs, favoring older tags over newer, ignoring some bullshit standards, and a bit of tweaking here and there.
If a near-idiot like myself working alone can build a web-based forum software which does all this, then I find it hard to believe that a company like Google couldn't do it.
And, in fact, while tricking everyone else to drop HTTP support and ignore non-Chrome browsers, Google continues to offer at least rudimentary support for Search for just about every browser I mentioned above.