In order to minimize damage, reduce further loss of lives and damage to economy (avoiding famine), if BNP-Jamat leadership care about people of Bangladesh, they should accept defeat unconditionally and accept whatever terms AL offers them to go forward.
Aside from lack of leadership and strategic thinking, one major mistake opposition made was miss-calculation that india and Awami League will not resort to genocide. That being said, there had been non stop propaganda campaign about defeat of opposition. But in reality is it the case? Not by a long shot.
From the beginning who was reading the polarization india/Awami League made and gun power they used, concluded that it will be long drawn struggle. Opposition is massively successful in engaging public (all but Dhaka) to prove that election was a farce and Awami League regime is illegitimate one installed by india. That alone is a huge success.
Source of India backed Awami power is gun barrel. And off course, silence of Dhaka based urban and well to do class. Can Awami League sustain in power with ONLY gun barrel, for how long? That is the question haunting south block as well as Awami League honchos.
For those urban elite class who are afraid of loss of life, you need to come out of your selfish comfortable shell and sense the reality. Even if you accept indian hegemony and Awami League repression, they will come and take your asset and even kill you. Hindus recently learned that hard way and just yesterday Rajshahi University students suffered Awami League bullets not for political cause but protesting tuition hikes 5 folds.
If you own a mid size garments, the way Awami League deliberately weaken the sector ( by hostile policy, interest rate hike, gas and electricity price hike) more than likely you would not able to run your company and will become victim of easy indian prey. In last 5 years, there are many garments taken by indians using this very tactic.
Bangladeshi financial system is on verge of collapse - no investment, pile of classified bank loans, wholesale looting from govt banks and govt borrowing destroyed financial capability long before political unrest started. To supplement financial destruction Awami League deployed contractionary monetary policy where interest rate is so high that taking loan from foreign banks is less costly than local banks. Without local business and with burden of classified loans, It would not be surprise if banks starts falling prey to indians soon.
Manpower export and Remittance earnings are decreasing at alarming rate because of Awami League indian prescribed policy. Voting for Russia over UAE on EXPO 2020 completely shut the prospect of restarting manpower export in ME.
Awami League started and continued destruction of core foundation of Bangladesh growth and livelihood for last 5 years; long before opposition protest started. By submitting to indian hegemony and Awami League, you may buy few months/years but life, livelihood and comfort zone urban elites and businessman using as an excuse will be destroyed by Awami League and its backer India.
Fortunately through, there are only few in your line of submissive thinking. Vast majority of Bangladeshis who suffered and suffering under Indo-Awami repression will keep resenting and NOT expecting any easy road.