I'm not sure anyone here has suggested that.
What has been suggested is a subsection of supporters for the Rwanda law specifically, race is a factor. This law will do nothing to control or deter immigration. It is also expensive, will require us to leave important global bodies (ECHR and UN refugee charter) and treats people like cattle rather than people.
When you consider the previous and that most refugees are genuine and when they are given asylum give a net benefit to society fiscally and culturally to the country. What reason is there left to support it? For those people a significant cohort of people will support this because of their racial views.
If you are not one of them that's fine, you will have reasons, add them to the debate and don't worry about other people's abhorrent views. To say race is a factor for some is not saying every supporter of the policy is racist. As I said in my previous post they could be stupid and ignore facts or have no respect for humanity but not be racist.
The fact is by every measure this policy is abhorrent and will do nothing to fix the issue. That can only be solved by proper tried and tested processes and proper points of entry.
Let me ask you one question. If the death penalty does not deter murderers (statistically proven) why would a half baked probably illegal policy deter someone from reaching safety?
140,000 per person and statistically 80% plus of them will be genuine refugees who's claims will be accepted. In what way does this policy benefit anyone?