People tend to go where they have connections like friends or family members who are already there; or they are more familiar with the local language/customs. Basically, they believe that their integration into the system of their final destination will be smoother for some type is social reason.
The reality is that they likely didn’t enter Europe in France, and they never had the intention of stopping there.
This is obviously a very contentious issue, because, as you correctly point out, there is no objective reason to think a refugee would be safer in the UK than in France. So the anti immigration types will keep using this as their reasoning.
What’s push to talk and why is it such a great feature?