The Mexican government is unable to control its own borders. Cartels rule with impunity within the country. Only a corrupt Mexican government bought by the cartels would oppose intervention.

I haven’t used it but Firefox has containers to allow you to separate your browsing activities which are isolated from each other. You need to install the Firefox Multi-Account Containers extension in order to use them.

https://addons.mozilla.org/en-US/firefox/addon/multi-account-containers/