Increasing years/time in-country has already grown beyond the germ of an idea to being incorporated in 3 different parties’ election programmes. I don’t suggest waiting until it becomes an unstoppable, self-fulfilling thing.
Perhaps it’s too early to write to politicians (they just won yesterday and are busy jockeying for positions). But certainly if you have a Fund Manager you should let them know now that you’re concerned - and that new investors are also worried (they probably care more about new money, they’ve already got your money).