I respectfully suggest that there may be a slight misunderstanding regarding the situation at hand. It is important to note that the Swiss National Bank (SNB) is the protagonist here, not UBS.
Credit Suisse (CS) is hated by everyone, which has made it difficult to provide them with a direct bailout. However, allowing the bank to fail will lead to a crisis that surpasses the GFC.
Therefore, the SNB sidestepped CS and its shareholders to craft a deal in such a way that it is too good for UBS to refuse. I would like to reiterate that neither CS nor UBS wants this, its being forced upon them by the SNB through the carrot (sweet deal) or the stick (coercion).
I'm not absolving any of the individual parties from responsibility but I have to state the obvious here. The current state of affairs is a direct result of a chain of events that has led us to this point. The government implemented a set of measures including a lockdown and a dangerous stimulus and liquidity program. However, just as we were on the brink of hyperinflation, they began rapidly draining liquidity from the system.
It is essential to acknowledge that it is not a mere possibility but rather an absolute certainty that something will break. Upon delving deeper into how the banking system operates, this becomes abundantly clear.
The entire economy is built around deposit stability, without this stability, banks are unable to hold long-term assets on their balance sheets. These long-term assets include mortgages, business loans, corporate bonds, municipal loans, government bonds, and others. This is what is meant when people refer to the economy as a credit-based system.