Thousands are thanking Starbucks for its support of a gay marriage law in Washington state as foes launch a boycott against the coffee giant.

The National Organization for Marriage (NOM), the nation's most vociferous opponent of gay marriage, on Wednesday launched its Dump Starbucks protest.

“We will not tolerate an international company attempting to force its misguided values on citizens,” NOM President Brian Brown said in a statement. “The majority of Americans and virtually every consumer in some countries in which Starbucks operates believe that marriage is between one man and one woman. They will not be pleased to learn that their money is being used to advance gay marriage in society.”

The group said it would place ads urging customers to “dump Starbucks” in the United States as well as in the Middle East and Southeast Asia.

Gay rights groups responded with campaigns supporting Starbucks.

More than 42,000 people have joined's online campaign thanking Starbucks for its support.

“Starbucks customers are speaking loud and clear: Being for equality is good for business,” Taren Stinebrickner-Kauffman said in a statement. “We're seeing almost unprecedented levels of interest from our members in this campaign. NOM is soon going to have to face the truth that it's losing the culture war it's been waging against LGBT people.”

The Human Rights Campaign (HRC), the nation's largest gay rights advocate, invited customers to sign an open letter of support to Starbucks Chairman Howard Schultz, who on Wednesday defended the company's decision.

“NOM is falling back on their typical tactics. Starbucks has been a vocal supporter of marriage equality for loving same-sex couples – views that are in-line with the majority of Americans – and that enrages NOM,” HRC President Joe Solmonese said in a statement. “As a result, NOM is throwing a temper-tantrum and encouraging its few supporters to intentionally harm the economic well-being of Starbucks employees all over the world.”