One thing to note is that if everyone stops having children, it will create a demographic crisis with a lot of older people / pensioners not able to work and not a lot of working age people to support the aging population. Good for environment ofc but quite bad for the remainder of population.

Don’t think private medicine companies are such a bad thing - there can only be so much research that is publicly funded and we can potentially miss out on some life saving drug not getting developed.

Imo a better solution would be decreasing the patent age so that the companies have only a small window to generate profit, after which the drugs would go into public domain. 20 years is way too long to profit of a discovery