Peace be on you.
Following peaceful and concrete actions are required to counter the disrespects against the Holy Prophet (peace and blessings of Allah be on him - pbuh)
1= Pray to God to get help and have full trust on Him that He will deal with perpetrators.
2= Express indignation at the vulgarirty against Holy Prophet (pbuh).
3= Draw attention of people to desist from committing such vulgarities.