Our capacity to absorb asylum seekers needs to be looked at in the context of national population projections.
The UK's fertility rate averages around 1.75 these days, whereas the replacement rate is just above 2.0 (see ONS source below). These numbers tell us that we are not having enough babies to maintain our population. This stuff is never reported, but it's true.
Of course we can accommodate asylum seekers. These are people fleeing persecution, remember; it is our moral duty as well as an economic benefit.
https://www.ons.gov.uk/peoplepopula...letins/birthsummarytablesenglandandwales/2020