There is only one irrefutable implication of the by-elections

The political make up of the House of Commons has not been significantly changed.

The Conservatives still need the support of another party to maintain the confidence of The House.

The Opposition still needs to unite to defeat the government.

The rest of the theories, analyses and prognostications that we have heard following these by-elections is speculation, conjecture and spin, much of it very self serving, and all of it of little value.