More than the price, regulations affect the accessibility factor. It makes it less accessible to people and hence, affects the adoption. This isn't really healthy for Bitcoin. There are countries where cryptos are outrightly illegal and there are some where heavy regulations make Bitcoin not at all worthy to have. Since, this curbs adoption. Demand won't rise that much as it could. This could at the end affect the price as a by product.
That is not really true! Regulations help to strength the market and make crypto currencies more available to the general public. No sane person wants to apply to some shady asian exchange just to buy a specific coin or token that they want to invest to.
The countries who make crypto illegal have usually far worse problems than monetary souveranity, thus making them a very bad example overall, due to their lack on all life quality on all borders. In Europa I would very much have a good and robust regulation, but on the other hand every country is cooking their own crypto meal and the regulations are extremely different. For example, crypto profits are entirely tax free in Portugal.