Sorry but a video of a random tiny tunnel showing enough cement in the video for.... a quarter of the foundations of one house, is proof of a vast tunnel network with which Hamas.... from Gaza, is going to launch a devastating attack on Israel.
Nefarious intentions being.... trying to hit back at the country that has attacked, oppressed, killed, murdered for 70 years.
You're acting like Israel has done nothing for 70 years and out of the blue, for no reason, Palestine decided to build a vast network to launch an unprovoked attack on a completely peaceful and friendly nation.
If their are tunnels, these two countries have been at war for almost 70 years, instigated and continued by Israel's consistent and unstopping aggression.
If anyone things that video of a tiny and ridiculous tunnel is a reason to level a city and kill innocent civilians, they are barking mad. As for why Gaza has no money, Israel stole their land, economy and jobs, have attacked them ever since and have actively blockaded their main source of money which has strangled their economy. They did this on purpose, they'd have a lot more money without a completely illegal blockade.
Without likely hundreds of billions now in the last 60 years of financial and military support, Israel would be broke as well.