SAN DIEGO -- If Colin Kaepernick plans on protesting the national anthem for the entire 2016 season, then he better get ready for the boo birds. If his latest game in San Diego was any indication, they're going to be out in full force whenever he's on the field.

The 49ers' visit to San Diego was Kaepernick's first game since his national anthem protest went public, and let's just say Chargers fans didn't seem too empathetic to Kaepernick's cause.

The booing of Kaepernick started as soon as he ran on Thursday night and didn't stop until 49ers coach Chip Kelly pulled him from the game at the beginning of the second half.

Chargers fans were relentless with Kaepernick, booing him on all 34 plays that he participated in during the 49ers 31-21 win.

Kaepernick got booed by Chargers fans despite the fact that he was applauding the 240 military members who were being honored on the field before the national anthem as part of the Chargers 28th annual 'Salute the Military' night.

Bruce Miller (l.) and Kaepernick applaud the military. USATSI

After the team was done honoring the soldiers during the pregame, Kaepernick went to a knee just before the anthem started, and that's when the booing got bad.

In the video below, you can see Kaepernick (in the middle of the screen) go to his knee at about the 12-second mark, and the booing starts about three seconds later once fans realized what was happening. Teammate Eric Reid also knelt during the national anthem on Thursday.

During the anthem itself, which was sung by Petty Officer 1st Class Steven Powell, there was no booing by Chargers fans. However, as soon as the song was over, fans started booing Kaepernick again.

There were a few hundred 49ers fans behind the team's bench and they tried to drown out the booing.

The booing didn't stop there though. Here's how loud the boo birds got when Kaepernick took the field for his final possession of the first half with 5:29 left in the second quarter.

Again, Kaepernick was literally booed for all 34 plays that he was on the field.

The 49ers quarterback has been facing some serious backlash since Aug. 26 when his protest went public. Kaepernick has made it clear that he's not going to stand for the national anthem until police brutality against minorities comes to and end.

"There's a lot of things that need to change," Kaepernick said, when asked on Sunday why he's protesting. "One specifically? Police brutality. There's people being murdered unjustly and not being held accountable. People are being given paid leave for killing people. That's not right. That's not right by anyone's standards."

Kaepernick has faced some backlash this week when it became public knowledge that he wore "pig cop" socks just four days before his first national anthem protest on Aug. 14.

The quarterback said he wore the socks to bring awareness to the fact that their are rogue cops who are putting people in danger.

"I wore these socks, in the past, because the rogue cops that are allowed to hold positions in police departments, not only put the community in danger, but also put the cops that have the right intentions in danger by creating an environment of tension and mistrust."

Kaepernick's cause might not be winning everyone over, but he has definitely found some support in the NFL. Like Kaepernick last week, Seahawks defensive back Jeremy Lane remained seated during the national anthem on Thursday.