What if they also get blocked on a DNS level, just like how they did those porn sites? You can actually use VPN. But what if the vpn services also get blocked?

What if they also get blocked on a DNS level, just like how they did those porn sites? You can actually use VPN. But what if the vpn services also get blocked? While achieving 100% of a blockage is not possible but achieving even a 30% is great.