Thousands of San Diegans of several faiths marched by Balboa Park on Sunday to call for the dignity of migrants and refugees as the Trump administration’s roundups of immigrants have recently reached new highs.The afternoon event, under a bright gray sky that shed occasional bouts of rain, evoked vibes of a 1960s peace march. Musicians performed a concert on the grass before the procession that combined worship music in three languages and protest folk songs, performed with vocals, keyboard, acoustic guitar, violin and a tambourine. The crowd sang and swayed to Bob Dylan’s “Blowin’ in the Wind” and The Beatles’ “Let...