Although I disagree with you on one thing, POPS, the Tory MPs who had the whip removed was because of the position they took on Brexit. Brexit is not rightwing.
You may be right Wigwam, but my recollection is that it was because they were against a “No Deal” exit (which they saw as being ERG generated) and were not against leaving with a deal. At the beginning of September they voted to block “No Deal” but undertook to support a Brexit Deal when it was achieved.