Support for Black Lives Matter has plunged to its lowest level, almost completely dividing the nation — with the majority of Americans convinced it’s done nothing to improve black people’s lives, according to a new poll.

The Pew Research Center found that just 51% of Americans even “somewhat” support the controversial activist group — a sharp decline from the 67% that backed it three years ago, at the height of the George Floyd protests.

Of those, only 22% “strongly support” the scandal-scarred activist group.

Worse, only a paltry 8% of the more than 5,000 polled think BLM’s high-profile work has been highly effective at improving the lives of black people, while a majority, 57%, think it’s not helped at all.

Even fewer, just 7%, think BLM been very effective at helping race relations, while 61% think it’s not helped.

In fact, just under a third, 32%, thought BLM has been notably effective at even bringing attention to racism — with nearly the same, 30%, believing it’s done nothing.

Only about a quarter — 26% — think BLM is “empowering,” while a mere 18% view it as “inclusive.”

Instead, around a third of Americans, 33%, describe BLM as being “dangerous” — with slightly more, 34%, calling it “divisive.”

The Pew Research Center noted that the plunging support comes 10 years after the Black Lives Matter hashtag first appeared online.

However, Pew’s data only started in 2020, when BLM’s influence exploded after Floyd, 46, was murdered under the knee of a Minneapolis cop in May 2020, sparking months of riotous protests across the city.

Since then, however, the BLM Global Network Foundation has faced a fierce backlash, with offshoot groups — and even families of people it was supposed to help — accusing it of holding back the $90 million it has collected, while paying millions to execs and their family and friends.

Co-founder and longtime leader Patrisse Cullors stepped down two years ago amid those mounting controversies — including her use of donated money to buy multi-million-dollar properties, such as a swanky Southern California home used for parties.

She later trashed the $90 million donated to her group as “white guilt money.”

Despite the scandals, the Pew poll — taken in April — suggests that 81% of black Americans at least “somewhat” support BLM, with around half of those expressing strong support.

In sharp contrast, only 17% of white people polled strongly support the group, with just 42% expressing any support at all.

Most Americans showing support for the group were younger, with 64% of those aged under 29 saying they at least “somewhat” support BLM, compared to just 41% aged 65 or older.

The sharpest division, however, came along party lines — with just 17% of Republicans showing any support, compared to 84% of Democrats.

Of those Dems, 40% strongly supported the group versus just 5% of Republicans expressing similar feelings.

Instead, a majority of Republicans — 59% — said that BLM was best described as “dangerous,” with 54% saying it was best described as “divisive.” Only 11% said it was “empowering.”

BLM Global Network Foundation did not immediately return messages seeking comment Thursday.