And I thought I was right wing...
Kwasi Kwarteng appears to have a rudimentary knowledge of how markets and competition work, but appears blissfully unaware of a number of factors which make the UK such an attractive place to come to work in. Making young people (probably illegal under European law anyway) pay back benefits and disadvantaging them against other market players and workers from other parts of the EU seems somewhat inadvisable.
There is a fair point about tax credits needing revision and students who have to take out loans being disadvantaged when compared to those who rely on benefits, but this isn't a solution and would quite possibly be more harmful to competition and to the UK's place in the internal market. The whole of Europe is moving towards more of a social economy now and the US isn't doing as well as it once was in comparison.
I would lay a bet that Kwasi Kwarteng comes from a close knit family that provided him with a secure upbringing which enabled him to attend Eton, Cambridge and Harvard (even with scholarships). These policies don't assist individuals that well - what they do is widen the gap between those lucky enough to be born into supportive families and those who, in lacking that, would be financially disadvantaged for the rest of their lives, no matter how talented. And that's the sort of talent we need to ensure is active on the marketplace on an equal footing, not burden with debt before they even get started on an independent life.