100% of this will be self-inflicted no javascript and 0% of the people who I am targeting.

The Galaxy Brain isn't global usage, it is overlapping populations. Will any percentage of them care about any percentage of me?

Put another way, many people decided to effectively drop support for IE11. When my client has even a single client who still uses IE11, we don't drop support even when it is "bad to support it". But when that drops to zero, regardless of what anyone else is doing, then we can drop support for IE11.