By definition if these alleged asylum seekers have passed through other safe countries in order to get to the UK and not sought asylum in the first safe country they entered then arguably they're not genuine asylum seekers, they are in fact illegal immigrants.
Just for a bit of clarification.
Asylum seekers are not held by any international law to claim asylum in any country other than the one of their choosing. So they may want to come to the UK for a host of reasons. Family already settled here, or born here. They might have a better command of English than any other European
language
They might be choosing Britain because in some European countries they're facing far more racism and bigotry.
The other point, and this is a biggie, and one that those who think Farage is their savior and listened to the lies he's been preaching is THERE IS NO SUCH THING AS AN ILLEGAL IMMIGRANT
If someone comes to the UK and claim asylum, it is under International law their right to do so.
From then their case is heard, and if unsuccessful will be removed from these shores as an illegal immigrant, because their had their case and were unsuccessful. This lack of success is what then deems them as illegal.. But until their case is heard they have asylum seeker status.
If you want an example of someone who is looking to become an immigrant purely for economic reasons, then look no further than the tax evader Charlie Mullins. Who wants to leave the UK because he might be asked to put his hand in his pocket and pay his fair share.
He's looking to move to either Spain, or Dubai, 2 countries where he speaks neither language
Or you could look towards the tens of thousands of UK pensioners who moved to Europe to be a burden on their health system again purely for economic reasons.
Did you know that 36 thousand of those pensioners living abroad have been happily claiming their UK winter heating allowance.
Many people leave the UK each year, last year 535,000 left to go elsewhere, and more than likely did so for economic reasons.