https://www.numbeo.com/crime/region_rankings_current.jsp?reg...
Given we know from comparing e.g. Crime Survey data to polls about peoples beliefs about crimes that peoples beliefs about crime rates in the UK are not remotely well correlated with actual crime rates, that page doesn't tell us what you claim it does.
It tells us that out of visitors to Numbeo, people who claim to live in 3 British cities report that they are more worried than most others.
For Bradford, the data is based on just 131 contributors in the last 5 years:
That sounds a lot like the Swedish defense, that Malmö only looks bad because the reporting standards are more rigorous. Meanwhile there are literal hand grenades exploding on their streets daily.
With 131 biased samples over 5 years, to continue with Bradford, who are not asked about actual crime, but about how they feel about it without an qualification as to whether they have any actual experience with it, this site is not saying anything useful.
Presenting it as if it is ranking cities by actual crime rates is ignorant of the data gathering at best, and at worst blatantly dishonest.
Then again given the hyperbole you're employing regarding Malmö, I should perhaps not expect you to care much about the veracity of data - yes, attacks with explosives is an escalating problem in Sweden, but nowhere remotely at the scale you're claiming.