Does Boycotting Huge Companies Really Work?

I read an article today about how a Chick-fil-A restaurant in the UK will be shutting down after its 6 months lease is up.  It's their very first location there and I'm unsure of if there will be others any time soon.

The restaurant opened in early October 2019 and has faced heat from an LGBTQ rights group calling out CFA for its previous financial support of anti-LGBTQ groups like The Fellowship of Christian Athletes and the Paul Anderson Youth Home.  The pressure was great enough to get the Oracle Shopping Center to not renew its lease with CFA.

CFA faces scrutiny on a regular basis from LGBTQ groups for their previous actions yet they are still the 3rd largest U.S. restaurant when it comes to sales.  They're just behind Starbucks and McDonald's.

Will it hurt a company that has earned billions or will it hurt those who lose their jobs when the company closes?

CFA gets over 20,000 inquires per year from franchise candidates.  They open 70-80 new restaurants annually.  Those restaurants bring jobs and tax money to the communities they service.

How people handle discrimination is completely their prerogative as long as it's legal.  I'm just playing devil's advocate here and I have two questions because I want to know how people feel about this:

Who does the boycott really hurt?  The huge company or its employees?

Are you anti-LGBTQ if you patronize or work at Chick-fil-A?