no it wasn't worse.
There are massive systemic issues in the country. Lack of housing, regional inequality, geographical inequality, falling real terms wages, chronic underfunding of R&D. Basically everything is falling apart. 40 years of financialisation of public services and nearly every aspect of our lives (there's virtually nothing you can do as part of your daily routine that doesn't trigger a transfer of wealth from public or household money to the top).
The Brexit vote itself was partially a reaction to these issues.
These things need real solutions and real ideas. Any ideas that even start to address them let alone reverse the issues will look radical, and Labour 2017 / 2019 was barely doing that just offering a mild social democratic platform that would not be out of place in Northern Europe or indeed in the 1983 SDP-Liberal manifesto.
Adding to that we would have had a planned and controlled Brexit, with certain Eu agreements being replaced with equivalent things with different names.
All of this is mostly academic though as the first restrictions in the pandemic would have given the key to removing a Corbyn government by an effective establishment coup.