It is impossible to ship e.g. Chromium on iOS right now. We just collectively buy the arguments put forward by Apple to support that position without appreciating the ramifications of not allowing market forces to drive healthy, competitive development.
In that process we made Apple the gatekeeper of web standards development. They can ship whatever they want, when they want and there is no way to build or work around it (e.g. 'Download this alternative browser!').
All we can do is wait, hope or complain. Apple knows the power it wields. I figure Google understands that too hence their position wrt Pointer Events.