My question wasn't whether people were saying stop the boats in a positive, inclusive way. It was whether a reasonable person could say it, or only a racist (or a person incited, as you have it).
Unless I've misunderstood, you're telling me that whilst, in theory, a reasonable person could say STB, in reality it's actually only ever said to advocate racism?
This you have established by virtue of what other (more overtly racist) things are also said by people who say STB.
I mean, even if you set aside the support given to STB by the previous prime minister and home secretary who both happen to be Asian (and you really should test your idea against that pretty relevant bit of information) surely you see the shortcoming in your method?
You can't possibly have heard what else every person who supports STB has to say, can you? Or even the majority of them. Even if you spend all day every day trawling through social media on this subject and surveying other posts of STB supporters, you're only ever getting a limited sample size. Surely that's obvious? Surely you know better than to confuse the fact that a racist would say STB with the idea that anyone who says STB must be a racist?
For you to conclude that anyone saying STB is racist you also have to discount any other possible justification they might have. To repeat my earlier point, it's not a matter of whether you agree with people who are concerned about exponential population growth, social cohesion, pressure on services, or whatever. You may never agree with those arguments. You might be right not to. That, however, is not the same as dismissing them as validly held views by reasonable people.
This is my concern in a nutshell. You seem to be saying never mind the range and status of people prepared to support STB, or any of the reasons they give, because you feel you know what they really mean.
I assure you I'm not some troll. I've got no time for many of the people I've seen at asylum hotel protests and suchlike. There seem to be some proper bellends in the mix there to me. But that doesn't blind me to the respectable people making sensible points that happen to overlap with them. Or to the basic tenets of reason.