They will not want to, but right now those skilled immigrants can easily come here to work, however if there was a lot of visa work to sort out then they may ch

They will not want to, but right now those skilled immigrants can easily come here to work, however if there was a lot of visa work to sort out then they may choose Germany or France over the UK. For an employer in London such as google it means dealing with many visa applications from many countries whereas if they were based in frankfurt or Dublin then they just need to deal with visas for UK applicants.