Keep trying–you never know when your word, your act, your listening will make the difference or contributes to the a bigger wave making a difference.
“Each time a person stands up for an ideal, or acts to improve the lot of others, or strikes out against injustice, he/she sends forth a tiny ripple of hope … and crossing each other from a million different centers of energy and daring, those ripples build a current that can sweep down the mightiest walls of oppression and resistance.” Robert Kennedy