No, speech needs to be hearable by those who would choose. You're free to shout your own counter-message, but from far enough away that you're adding signal not

No, speech needs to be hearable by those who would choose. You're free to shout your own counter-message, but from far enough away that you're adding signal not noise. Similarly, trying to form a barricade and keep people from reaching the speaker and hearing them is an attempt to silence their speech.