The Netherlands is not going back on this. 20-30 years ago we had a really progressive soft drug policy (tolerance policy / gedoogbeleid). We still have that same policy. Only now it seems regressive because many other countries have legalized soft drugs in the past decades and we just kept our old policies.
What?!?! Netherlands illegalizes something every week. I guess your talking about the tolerant policies where even selling drugs rarely results in prison? No more shrooms and nitrous; I think the shroom thing is just for tourists and they're just expecting you to grow yourself and keep to yourself.
I know you can get quite a serious charge (in other countries) and make out okay in NL. You could kill someone and be working a good job on the outside in 2-10 years.