Craig, I've read your article and the simple and fundamental problem here is highlighted in your last paragraph, where you say “A lot of people voted Green . . . . . . . This member of the Scottish parliament, elected by the Scottish people, must be defended against any attack from the London-based UK Home Office”.
This is nonsense, because none of the Scottish people actually voted for Manivannan in any meaningful way. If you ask the question “Why did the voters of Edinburgh and Lothians East choose Manivannan?” the only honest answer to that question is that they didn't.
He was elected because the Scottish Green Party put his name third on a regional list which was chosen, and ordered, by a small group of Green party activists. The Scottish proportional representation mechanism puts parties in charge, not voters. This is presented as democratic because constituency votes are supposed to be proportionately balanced with with members from the party lists. But, in practice, it is profoundly undemocratic because the party machine decides who sits where on the list and, in practice, voters have no way to approve or get rid of list MSPs. .
If you go back to Tony Benn's five questions to ask people in power - What Power Have You Got? Where Did You Get It From? In Whose Interests Do You Exercise It? To Whom Are You Accountable? How Can We Get Rid Of You? - it's obvious that Manivannan's election fails most of the tests. He got his power from the party, he is there to serve the party's interests, he is not accountable to voters because they have no direct say in his election and, for all practical purposes, he can't be voted out
“A lot of people” voting Green is not, in any way, equivalent to them voting for or endorsing Manivannan. Do you honestly believe that a foreign national on a student visa, with a minimal connection to Scotland, would have been voted for if the Edinburgh and Lothians East voters had been choosing actual candidates? There is a reason that he was third on the list and not standing in the constituency election. To suggest that there is a strong “democratic mandate” supporting his election is simply Orwellian Newspeak. And please don't tell me that he's a “pleasant and gentle soul” who's done nothing wrong – no-one forced him into standing and he must have known perfectly well what he was doing when he agreed to take part in this profoundly undemocratic charade.