The Lib Dems have a knack of swinging wildly on the side of public opinion (e.g., Iraq War) and back to the fringes (e.g., Revoke Policy). The latter is often buoyed by coming off the back successful elections, giving the party a false sense of confidence that such policies are far more popular than they are and indeed we can be the party of governance. Though such fringe policies have a lasting and damaging impact. Easy to make accusations that the party is neither “Liberal” or “Democratic” is easy to make when such positions are taken and particularly when the public doesn’t see it as justified.
And so, we come off the back of an incredible victory, in a by-Election, over the floundering Tories, in a pandemic. Emboldened by this and the quiet, lack lustre opposition; the Lib Dems are vibrant in their opposition to this government. They see the current state and utter incompetence of the Tories and they see an open goal.
Where the Tories have been cautious about further restrictions, the Dems feel this is dilly-dallying. Restrictions are needed and the country needs strong leadership (which they offer) to put these in place.
This puts the Dems in a precarious position. By being on the side of illiberal restrictions (protections also, but still illiberal), they expose themselves to those allegations. However there has always been a liberal justification for such restrictions. Even the most libertarian of libertarians, Ayn Rand would have seen the justification for lockdowns; in light of no vaccine. And the Lib Dem position has been in line with the public mood, for most of the pandemic.