Yes, Brydo, you are right that all those things can be changed by a democratically elected and accountable government through the legislative process. Whether they will be is another matter and very much a project fear motif especially the chlorinated chicken nonesense.
A democratically elected and accountable UK government can act to lower or remove VAT on sanitary products and ban the export of live animals, both of which we cannot do as a member of the EU.
You can believe in an autocratic, unaccountable legislature (the EU) or youc believe in democracy (the UK once we’ve left)..