The choice you are talking about is clearly to report offensive and disrespectful comments, and you are complaining about their bad grammar in phrasing the choice, not about their actual policies.
You can check that box, but if you actually click the link next to that box to find out what they will and will not remove, the criteria are based on Content Boundaries (copyright violation, etc.), Spam and Abusive Behaviour, and the abusive behaviour categories are:
- Violent Threats
- Hateful Content
- Multiple Account Abuse
- Private Information
- Impersonation
- Self Harm
- Harassment
The criteria used to evaluate harassment are detailed as:
- if a primary purpose of the reported account is to harass or send abusive messages to others;
- if the reported behavior is one-sided or includes threats;
- if the reported account is inciting others to harass another account; and
- if the reported account is sending harassing messages to an account from multiple accounts.
The form requires you to submit the specific tweets that were problematic so they can be evaluated. That is, they don’t simply ban or suspend anyone who is reported.
There is lots of detail given about how they evaluate these things, and nowhere does it suggest that they would take any action against someone merely for disagreeing with someone else’s opinion.