Wagenknecht, in my eyes, is a very questionable figure, with very questionable views.
This article frames the issue as identity politics vs class-based politics, and while I feel that it is very valid to want to focus on the latter, the former is also important, and she doesn't eshew it, she just holds views different from what I feel is the lefty 'mainstream', if such a thing exists. She has, for example, gone on record against the new German self-determination law, citing the well worn argument that it'd allow 'men' to enter 'female spaces'. She's also gone on record calling some gender-affirming surgeries 'mutilation'.
The things she says on migration have already been cited in this thread.
I'm not opposed to the idea of a new left party, but to me, Wagenknecht's certainly isn't it.
Can a New German Party Steer the European Left in a More Effective Direction? ( www.nakedcapitalism.com )