We have the right to bear arms in the UK. You just need to apply for a licence to do so. You might not be successful, if for instance, you are known to be a violent criminal. The US notion of a "right to bear arms" is actually the right to bear arms without record and without scrutiny, and the wholesale endorsement of a culture in which preventable gun deaths are completely normalised.
In the US, it's more likely that someone you will love, your partner, your child, maybe you - will use that gun to kill themselves, intentionally or by accident than it is that it will ever be used successfully in self defence. The majority (58%) of all gun deaths in the US are suicides.
And bringing out a gun in self defence in a country where gun violence is completely normalised like the US, is just increasing the likelihood that you will be fatally shot by your assailant, in their self defence.
I wouldn't like to own a gun and keep it in my house, because I value my children's lives. I wouldn't like to live in a culture which normalises preventable gun deaths because I value my children's lives, and human life in general.
The leading cause of death for children in the US is gun violence. I find that absolutely shocking but it would seem that their culture does value guns more than children's lives. Removing guns would save more children's lives in the US than curing cancer.