This isn't the '70s anymore. Even the groups whose logos you posted - the BNP and NF - are basically dead. Those types of groups, however, are mostly made up of angry working class and poor white youth who feel left behind and disenfranchised, and guess what? The numbers of those people are growing and growing in the US and the UK, and probably elsewhere in the US. Most of them won't be joining extremist groups these days, though. So maybe we should try actually listening to their grievances as people instead of shaming them. Because they're not going away and the problem is only festering and growing worse.