Why was an antiwar movement developing in the united states while us president lyndon johnson escalated the war in north vietnam?

The reason why an antiwar movement developing in the United States while US president Lyndon Johnson escalated the war in North Vietnam is: US citizens were concerned about the loss of soldiers and civilians in the war
The Vietnam War was historically the biggest defeat that American military ever faced. The Vietnam troops were really capable in employing guerilla tactics in unknown terrain which destroyed most of the units that American military sent.