The 'conservatives' ( liberals, wash your ears out with a caustic cleaning agent and a high pressure hose if you need to) have generally been behind these shutdown events from a historical perspective. Long-standing philosophically corny conservative axioms that I personally ascribe to include limited government and fiscal responsibility (don't spend beyond your means; arguments are based on a means to an end in an attempt to curtail spending).
On the surface these current House R holdouts are standing their ground on these principles ...and they're also hard-line on some of the spending bill unrelated 'earmark ' attachments that routinely accompany these appropriations bills on both sides of the crooked, meandering aisle. I haven't seen any arguments in this thread that addresses the latter as a critical part of the overall current fight. Grandstanding by a few is a part of the theater, unfortunately. The reality of R actions hasn't always backed those long touted philosophical axioms in practice despite vocalized public arguments. I support the basic intent / principle of curtailing govt influence and profligate govt spending practices ( which has been in effect for decades, partially due to population growth) ; yet, accommodations / compromise have to be attained or else the divide expands and future political cost can/ will be measured. In the end, we get nowhere and this displays the continuous mirror image of division we're up to our necks in. Nobody gains / avoids considerable costs. So it's my hope that these within-party factions can STFU and sacrifice a bit and come to an agreement by Sat. night. The juice ain't worth the squeeze, imo. Then we can resume across - party dart flinging on multiplicative alternate issues..it'll be fun and unavoidable. Can't wait.
Previous shutdowns have affected daily American lives for certain government employees and in some cases certain agency service levels they routinely provide for the public. One could argue that the efficiency of those routinely provided govt agency services is poor in some instances, but that's another argument / issue that we can debate ad infinitum...starting next week. Currently, there's a bigger hump to scale.
According to an internet source (FWIW), the average length of these shutdowns is about a week's time, with many lasting just a few days. That average is greatly skewed upward by a limited few longer shutdowns (35 days under Trump, 21 days under Clinton..as examples).
From a glass half full perspective ( which is hard for me personally to align with when govt action is involved), I think they'll either agree before Sat night or within just a few days of any official shutdown. The R party members might just calculate the political cost of a prolonged event. Regardless, I don't think it will be an apocalyptic event as routinely advertised..and limited sufferage by involved affected employees and their families along with any impaired agency services should be a paramount consideration / goal.
And send money, of course...