Should the UK block Scotland’s gender recognition bill?

In the UK individual countries can make their own laws as long as they don't disadvantage the UK as a whole. For example the drink drive limit in Scotland is 50mg/100ml of blood compared to England/Wales 80mg/100ml

However laws can be vetoed if they are believed to have an “adverse effect” on laws which the UK parliament has ultimate jurisdiction over. To date, this veto has never been applied

This could change thanks to Scotland's new gender recognition bill which gives anyone over 16 years of age the right to change gender in only 3 months by filling out a form.

Proponents argue the old way is too long and complex while opponents worry the new law could put woman at risk?

Ultimately, the real question is does this law affect the UK as a whole or is it no different to drink drive laws? Thoughts?
Should the UK block Scotland’s gender recognition bill?
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Should the UK block Scotland’s gender recognition bill?
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