Yes, I do. The majority group of offenders committing sexual abuse in the UK is white British men. 'Low-skilled' jobs keep essential sectors of society running - without people coming to do 'low-skilled' jobs, fruit and vegetables don't get picked, elderly people don't get personal care, etc. There are some demographics which cost more to the state than they generate in income or give back to society in other ways - these demographics are not exclusively immigrants. Terrorist attacks of any ideology are reprehensible and should be dealt with to the full extent of the law, with resources available to understand and address underlying contributing factors as well as resources available for counter-terrorism work.
I think immigration policies should be able to be reviewed and considered critically, but I don't think we should fear the positives that other people and other cultures can contribute. We shouldn't let this man's agenda get any more airtime - that's partly what he'll have wanted. And we shouldn't disrespect the pain of people involved, by using this as an opportunity to attack the very minority groups this man seems to have hated.