The takedown of President Donald Trump's Twitter account marks an assertion of power by an online industry that has suffered years of government scrutiny.Conservatives' Trump-era grievances against social media and Silicon Valley tech companies have focused largely on accusations of censorship and cancel culture. | Denis Charlet/AFP via Getty ImagesSilicon Valley is punching back.After more than 1,400 days of trying to placate and handle President Donald Trump and his allies, the tech industry is taking on the Trump machine with just days left in the president’s term.In a flurry of quick...…The takedown of President Donald Trump's Twitter account marks an assertion of power by an online industry that has suffered years of government scrutiny.Conservatives' Trump-era grievances against social media and Silicon Valley tech companies have focused largely on accusations of censorship and cancel culture. | Denis Charlet/AFP via Getty ImagesSilicon Valley is punching back.After more than 1,400 days of trying to placate and handle President Donald Trump and his allies, the tech industry is taking on the Trump machine with just days left in the president’s term.In a flurry of quick...WW…