Generally speaking, asking a question that begins “don’t you think that…” has the effect of limiting discussion and closing avenues for developing ideas together.
I don’t accept either of the presumptions your question makes though: a) unionism doesn’t necessarily lead to increased licensing requirements; b) increased licensing is not necessarily bad.
I support the idea of unions because I want to see more power in the hands of the workers that produce things with their own skill and labour.
I don’t think unions are the only, or best, method for that.
I would rather see worker co-ops.